Created attachment 210218 [details] rubygem-execjs's patch file. By updating www/node to 13.x, so we cannot select node 12.x backend on this port. I want to use node backend as 12.x, so I wrote a patch.
A commit references this bug: Author: sunpoet Date: Sat Dec 28 07:51:18 UTC 2019 New revision: 521205 URL: https://svnweb.freebsd.org/changeset/ports/521205 Log: Add NODE12 option PR: 242875 Submitted by: Norikatsu Shigemura <nork@ninth-nine.com> Changes: head/devel/rubygem-execjs/Makefile
Committed. Thanks!